An assembly device for a tuning lever of a celesta

Abstract

The application discloses a kind of equipment for the assembly of triangle piano adjusting file, after wood strip is inserted into twist bolt, twist buckle is rotated vertically and assembled to twist bolt one by one by the equipment, and adjusting file automatic twist buckle is realized.The equipment includes directional feeding mechanism, circumferential positioning mechanism and assembly mechanism, the directional feeding mechanism is used to output twist buckle one by one with its assembly hole downward, the circumferential positioning mechanism is used to arrange the circumferential angle of tuning hole of twist buckle, and the assembly mechanism is used to pre-press twist buckle on twist bolt first, then twist buckle is screwed in;Realize the directional feeding of material, pre-press, material clamping rotation assembly of adjusting file automatic twist buckle, to ensure that the height of all twist buckles in adjusting file is uniform, and the circumferential angle of tuning hole is uniform.

Description

Technical Field

[0001] This invention relates to the field of piano manufacturing and processing technology, specifically to an assembly device for adjusting the gears of a grand piano. Background Technology

[0002] like Figure 1 As shown, the piano tuning pegs are components of the piano, comprising a wooden strip 5, screws 6, and buttons 4. First, one end of each screw is inserted into the wooden strip at intervals along its length. The other end of each screw is threaded. Then, the screws are assembled onto the other end of the wooden strip. Specifically, the axis of each screw has a mounting hole 41 that mates with it. One end of the mounting hole is defined as the front face, and the other end is defined as the back face. Two radially arranged tuning holes 42 are provided on the side closest to the front face. The axes of the two tuning holes intersect and are perpendicular. These tuning holes are used for later piano tuning operations. To better assemble the piano and ensure product quality, the height of all buttons and the circumferential angle of all tuning holes must be consistent.

[0003] In existing processing technologies, the process of assembling twisted rivets into twisted rivets can be largely mechanized. However, this only ensures the uniformity of the rivet height; maintaining consistent circumferential angles of the tuning holes on the rivets remains difficult.

[0004] In addition, for cylindrical products such as twisted nails, only one twisted nail can be output during the feeding process. However, it is difficult to ensure that the front end face of the twisted nail in the output direction is uniformly positive. Generally, manual adjustment is required, or visual inspection equipment can be used in conjunction with a jig to drive the twisted nail to turn. This undoubtedly increases the labor cost or equipment manufacturing cost of production. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an assembly device for the adjustment gear of a grand piano, which realizes the material orientation feeding, pre-compression, and material clamping and rotation assembly of the adjustment gear with automatic button placement, so as to ensure that all the buttons in the adjustment gear have a uniform height and the circumferential angle of the tuning holes are uniform.

[0006] The technical solution of the present invention is as follows:

[0007] An assembly device for adjusting the gears of a grand piano includes a directional feeding mechanism, a circumferential positioning mechanism, and an assembly mechanism.

[0008] The directional feeding mechanism comprises a vibrating disc, a hooking rod, a distributing guide, and a conveying track; the hooking rod is used to identify and guide the twist buttons with different front end surfaces into two motion states; the distributing guide is arranged below the output end of the vibrating disc; the distributing guide has a bifurcated opening; the conveying track is arranged below the distributing guide; the conveying track has a first channel and a second channel which are connected to the bifurcated opening; the first channel extends to the circumferential positioning mechanism; and the second channel extends back to the vibrating disc.

[0009] The circumferential positioning mechanism comprises a material moving assembly and a material rotating assembly; the material moving assembly is used to receive the twist buttons and transfer them to the material rotating assembly; and the material rotating assembly is used to adjust the circumferential angle of the twist buttons.

[0010] The assembling mechanism comprises a feeding tool, a pre-pressing assembly, and a rotary pressing assembly; the feeding tool has a first station and a second station; the first station is located below the pre-pressing assembly; and the second station is located below the rotary pressing assembly; the rotary pressing assembly is used to take the twist buttons from the circumferential positioning mechanism, place them on the twist nails on the wood strip in sequence, and pre-press them; and the rotary pressing assembly is used to drive the twist buttons to rotate and press down so as to screw the twist buttons into the twist nails.

[0011] Further, one end of the hooking rod is rotatably arranged above the output end of the vibrating disc; the other end of the hooking rod has a tapered head which is adapted to the assembling hole of the twist button.

[0012] Further, the distributing guide comprises a first guide plate and a second guide plate; one end of the first guide plate and one end of the second guide plate are connected; the other end of the first guide plate is downwardly inclined in the rear direction of the conveying direction; the other end of the second guide plate is downwardly inclined in the front direction of the conveying direction; and the bifurcated opening is formed.

[0013] Further, the conveying track comprises a first track plate, a second track plate, and a side baffle; the second track plate is arranged above the first track plate in a spaced manner; the side baffle is located between the first track plate and the second track plate and connects the side faces of the first track plate and the second track plate, forming the first channel above the first track plate and the second channel above the second track plate; and the output end of the first track plate is extended relative to the second track plate, so that the first guide plate avoids the second track plate and extends above the first track plate, and the second guide plate extends to the second track plate.

[0014] Further, the first track plate and the second track plate are downwardly inclined at the side connected to the side baffle.

[0015] Further, the conveying track further comprises a guide pipe, one end of the guide pipe is connected with the first track plate, and the other end of the guide pipe is connected with the circumferential positioning mechanism, and the conveying route of the guide pipe is bent from horizontal to vertical downward.

[0016] Further, the material rotating assembly comprises a rotating seat and an optical detection module; the rotating seat is used for driving the twist button to rotate around the axis, and the optical detection module is arranged on one side of the rotating seat and used for detecting the circumferential angle of the twist button on the rotating seat.

[0017] Further, the optical detection module is a light ray sensing module, which comprises an emitter and a receiver, and the emitter and the receiver are oppositely arranged on two sides of the rotating seat.

[0018] Further, the spinning assembly comprises a pushing cylinder, a motor and a third clamping piece; the motor is arranged on the output end of the pushing cylinder, and the third clamping piece is arranged on the output end of the motor.

[0019] Further, the third clamping piece comprises a pair of clamping blocks, a supporting column and a pair of transmission columns; the two clamping blocks are oppositely arranged and slide, the supporting column is fixedly arranged on the axis of the clamping region of the two clamping blocks, and the two transmission columns are oppositely arranged on the two clamping blocks, and the transmission column is matched with the tuning hole of the twist button.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. The directional feeding mechanism can output the twist buttons one by one, and the end faces of the front sides of the output twist buttons are uniform, and the circumferential angle of the twist button can be adjusted by the circumferential positioning mechanism, so that the cylindrical workpiece is directionally fed; 2. The assembling mechanism first pre-presses the twist button on the twist nail to make the twist button and the twist nail pre-tighten, and then twists the twist button into the twist nail, so as to ensure that the heights of all the twist buttons in the adjustment file are uniform and the circumferential angles of the tuning holes are uniform. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0023] Figure 1 is a schematic view of the adjustment file and the twist button in the background art of the present application;

[0024] Figure 2 is a top view of the assembling equipment in the present application;

[0025] Figure 3 is the front view of the assembling device in the present application;

[0026] Figure 4 is the partial schematic view of the output end of the vibrating disc in the present application;

[0027] Figure 5 is the schematic view of the process of the twist clasp in the first state entering the first channel in the present application;

[0028] Figure 6 is the schematic view of the process of the twist clasp in the second state entering the second channel in the present application;

[0029] Figure 7 is the partial schematic view of the circumferential positioning mechanism in the present application;

[0030] Figure 8 is the partial schematic view of the assembling mechanism in the present application;

[0031] Figure 9 is the partial schematic view of the third clamping piece in the present application;

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1-orientation feeding mechanism; 11-vibrating disc; 12-hooking rod; 13-distributing guide; 131-first guide plate; 132-second guide plate; 14-conveying track; 141-first track plate; 142-second track plate; 143-side baffle; 144-guide tube; 15-guide frame;

[0034] 2-circumferential positioning mechanism; 21-material moving assembly; 211-material receiving seat; 212-first clamping piece; 22-material rotating assembly; 221-rotating seat; 222-optical detection module;

[0035] 3-assembling mechanism; 31-feeding tool; 311-bottom plate; 312-limiting plate; 313-reference plate; 314-side pressing cylinder; 32-pre-pressing assembly; 321-second clamping piece; 33-rotary pressing assembly; 331-pushing cylinder; 332-motor; 333-third clamping piece; 3331-clamping block; 3332-supporting column; 3333-transmission column;

[0036] 4-twist clasp; 41-assembling hole; 42-tuning hole; 5-wood strip; 6-twist pin. DETAILED DESCRIPTION

[0037] For the purpose of better understanding the object, structure, features and effects of the present application, the present application will be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that the features shown in the drawings are not necessarily drawn to scale. In addition, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0038] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "connected" or "coupled" and similar terms do not necessarily mean physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", "front", "back", and the like are used only to indicate relative positional relationships, which can change when the absolute positions of the described objects change. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise stated.

[0039] As shown in Figures 2-3 The present embodiment provides an assembly device for tuning pegs of a triangle, after the wood strips 5 are inserted into the turnbuckles 6, the device is used to rotate the turnbuckles 4 vertically one by one onto the turnbuckles 6 to realize automatic installation of the turnbuckles 4 on the tuning pegs. The device includes a directional feeding mechanism 1, a circumferential positioning mechanism 2 and an assembly mechanism 3. The directional feeding mechanism 1 is used to output the turnbuckles 4 one by one with their assembly holes 41 facing downward, the circumferential positioning mechanism 2 is used to position the circumferential angle of the tuning holes 42 of the turnbuckles 4, and the assembly mechanism 3 is used to pre-press the turnbuckles 4 onto the turnbuckles 6 and then screw the turnbuckles 4 in; realizing directional feeding, pre-pressing and rotating assembly of the material to realize automatic installation of the turnbuckles 4 on the tuning pegs, so as to ensure that the heights of all the turnbuckles 4 in the assembled tuning pegs are uniform and the circumferential angles of the tuning holes 42 are uniform.

[0040] As shown in Figure 4 As a preferred scheme, the directional feeding mechanism 1 includes a vibrating disc 11, a material hooking rod 12, a material distribution guide 13 and a conveying track 14. The vibrating disc 11 is used to output the turnbuckles 4 one by one in a horizontal state;

[0041] Since the vibration disc 11 can only output the twist button 4 one by one, it is unable to uniformly control the end face of the front side of the twist button 4 to be a positive face or a negative face, therefore, the hooking rod 12 is used to identify and guide the twist button 4 with different front end faces to two kinds of motion states; one end of the hooking rod 12 is rotatably arranged above the output end of the vibration disc 11, the other end of the hooking rod 12 has a taper head, the taper head is adapted to the assembly hole 41 of the twist button 4, and in the normal state, the taper head is aligned with the assembly hole 41 of the twist button 4;

[0042] Specifically, as shown in Figure 5 when the positive face of the twist button 4 is in the front side, the assembly hole 41 of the twist button 4 will be sleeved outside the taper head, under the action of the horizontal thrust and upward supporting force of the vibration disc 11, in the process of the twist button 4 pushing the hooking rod 12 to rotate upward, the taper head and the twist button 4 will be clamped with each other, the front end of the twist button 4 is hooked up, and the twist button 4 keeps advancing in the trend of changing from horizontal to vertical, forming a first state; as shown in Figure 5 when the negative face of the twist button 4 is in the front side, the taper head abuts against the end face of the twist button 4, forming a wedge structure, the taper head rotates upward along the end face of the twist button 4, while the twist button 4 keeps advancing in the horizontal state, forming a second state; in this way, based on the difference of the front end face of the twist button 4, the hooking rod 12 guides the twist button 4 on the output end of the vibration disc 11 to two kinds of trend motion states.

[0043] As shown in Figure 4 the distribution guide 13 is arranged below the output end of the vibration disc 11, the distribution guide 13 has a bifurcated mouth, when the twist button 4 falls from the output end of the vibration disc 11 to the distribution guide 13, the twist button 4 is guided to separate from the bifurcated mouth based on the difference of the motion state of the twist button 4; the distribution guide 13 is in inverted V shape, which includes a first guide plate 131 and a second guide plate 132, one end of the first guide plate 131 and the second guide plate 132 is connected, the other end of the first guide plate 131 is downwardly inclined in the rear direction of the conveying direction, the other end of the second guide plate 132 is downwardly inclined in the front direction of the conveying direction, so as to form the bifurcated mouth;

[0044] Specifically, as shown in Figure 5 when the twist button 4 in the first state leaves the output end of the vibration disc 11, the tail end of the twist button 4 falls downward first, since the twist button 4 loses the horizontal thrust and upward supporting force of the vibration disc 11, the taper head and the twist button 4 are no longer clamped with each other, and the hooking rod 12 pushes the twist button 4 to fall on the first guide plate 131 in the process of resetting, so that the twist button 4 slides down along the first guide plate 131; as shown in Figure 6As shown, when the second state button 4 leaves the output end of the vibrating plate 11, the front end of the button 4 first falls downwards, and with the forward translational movement, it falls onto the second guide plate 132 and slides down along the second guide plate 132; in this way, the two motion states of the button 4 are separated and exported.

[0045] like Figure 4 As shown, the conveying track 14 is disposed below the material distribution guide 13. The conveying track 14 has a first channel and a second channel connecting the bifurcation, used to separate and output the two states of the buttons 4. The first channel extends to the circumferential positioning mechanism 2, and the second channel extends back to the vibratory feeder 11. The power source driving connection between the conveying track 14 and the vibratory feeder 11 is provided, so that the conveying track 14 can drive the buttons 4 forward. The conveying track 14 includes a first track plate 141, a second track plate 142, and a side baffle 143. The second track plate 142 is spaced above the first track plate 141, and the side baffle 143 is located between the first track plate 141 and the second track plate 142, and is connected to the first track plate 141. 41 and the side of the second track plate 142; the side of the first track plate 141 and the second track plate 142 connected to the side baffle 143 is inclined downward, the first track plate 141 is located above the vertical area of ​​the hopper of the vibrating plate 11, the first channel is formed above the first track plate 141, and the second channel is formed above the second track plate 142; the output end of the first track plate 141 extends relative to the second track plate 142, so that the first guide plate 131 avoids the second track plate 142 and extends above the first track plate 141, the distance between the bottom end of the first guide plate 131 and the first track plate 141 is greater than the diameter of the button 4, and the second guide plate 132 extends to the second track plate 142;

[0046] Specifically, in the first state, the button 4 slides down along the first guide plate 131 onto the first track plate 141 and abuts against the side plate. Thus, driven by the power source of the vibratory feeder 11, the button 4 in the first state is conveyed to the circumferential positioning mechanism 2 on the first channel for subsequent processing. In the second state, the button 4 slides down along the second guide plate 132 onto the second track plate 142 and, under the vibration of the power source of the vibratory feeder 11, falls from both sides of the second track plate 142 onto the hopper of the vibratory feeder 11 for re-output.

[0047] like Figure 7As shown, further, the conveying track 14 also comprises a guide pipe 144, one end of which is connected to the first track plate 141, and the other end of which is connected to the circumferential positioning mechanism 2, the conveying route of the guide pipe 144 being bent from horizontal to vertical downward, so that the twist button 4 is turned from a lying state to an upright state during the conveying to the circumferential positioning mechanism 2.

[0048] As shown in the drawings, Figure 4 As shown, preferably, the first guide plate 131 comprises a receiving part and a guide part, the receiving part being used for receiving the twist button 4, and the guide part being used for axially limiting the twist button 4, so as to facilitate the twist button 4 not to deviate during the conveying; specifically, the receiving part is of a structure with a wide contact area, which facilitates the twist button 4 to enter, and the guide part is of a structure with a narrow contact area, which facilitates the twist button 4 to be limited on the outside, so that the twist button 4 accurately slides onto the first track plate 141; as in the embodiment, the receiving part is a flat plate, and the guide part is a pipeline.

[0049] As shown in the drawings, Figure 4 As shown, preferably, the device further comprises a guide frame 15, which is arranged above the output end of the vibrating disc 11 and below the pivoted end of the material hooking rod 12, the guide frame 15 being provided with a limiting groove extending along the conveying direction, and the material hooking rod 12 being movable in the limiting groove, so as to limit the two sides of the material hooking rod 12, prevent the material hooking rod 12 from swinging on both sides along the conveying direction during the resetting, and facilitate the taper head to align the assembly hole 41 of the twist button 4.

[0050] As shown in the drawings, Figure 7 As a preferred scheme, as shown, the circumferential positioning mechanism 2 comprises a material moving assembly 21 and a material rotating assembly 22; the material moving assembly 21 is connected to the guide pipe 144, so as to receive the twist button 4 and transfer the twist button 4 to the material rotating assembly 22, and the material rotating assembly 22 is used for adjusting the circumferential angle of the twist button 4, so that the twist button 4 is transferred to the assembly mechanism 3 at a unified circumferential angle.

[0051] As shown in the drawings, Figure 7 As shown, the material rotating assembly 22 comprises a rotating seat 221 and an optical detection module 222; the rotating seat 221 is used for driving the twist button 4 to rotate around its axis, and the optical detection module 222 is arranged on one side of the rotating seat 221, and is used for detecting the circumferential angle of the twist button 4 on the rotating seat 221; specifically, the optical detection module 222 detects the circumferential surface of the twist button 4 during the rotation of the twist button 4, and when the twist button 4 is rotated to a set circumferential angle, the rotating seat 221 stops driving.

[0052] In the embodiment, the optical detection module 222 is a light ray sensing module, which comprises a transmitter and a receiver, and the transmitter and the receiver are oppositely arranged on two sides of the rotating seat 221; in particular, when the axis of the tuning hole 42 of the clasp 4 is consistent with the direction of the light ray, the light ray emitted by the transmitter can pass through a tuning hole 42 and irradiate on the receiver, so as to determine the circumferential angle of the clasp 4; the infrared ray can pass through any one of the tuning holes 42 of the clasp 4.

[0053] As shown in Figure 7 The material moving assembly 21 is provided with a receiving seat 211 and a first clamping member 212; the receiving seat 211 is located below the guide pipe 144 and is slidably arranged on one side of the rotating seat 221, and the first clamping member 212 is slidably arranged above the receiving seat 211 and the rotating seat 221; in particular, after the receiving seat 211 receives the clasp 4 from below the guide pipe 144, the receiving seat 211 slides to the rotating seat 221 to leave the vertical area of the guide pipe 144, and the first clamping member 212 transfers the clasp 4 from the receiving seat 211 to the rotating seat 221.

[0054] As shown in Figure 8 As a preferred scheme, the assembly mechanism 3 comprises a feeding tool 31, a pre-pressing assembly 32 and a spinning assembly 33; the pre-pressing assembly 32 and the spinning assembly 33 are arranged on two sides of the feeding tool 31, and the spinning assembly 33 is located on the side close to the circumferential positioning mechanism 2; the spinning assembly 33 takes the clasp 4 from the circumferential positioning mechanism 2, puts the clasp 4 on the twist nail 6 and pre-presses; the spinning assembly 33 drives the clasp 4 to rotate and press down, so as to screw the clasp 4 into the twist nail 6; the pre-pressing process is arranged to pre-tighten the clasp 4 and the twist nail 6, so that after the subsequent spinning of the clasp 4, the clasp 4 is naturally and stably erected and closely assembled after the same height is pressed down and the same number of turns is rotated (i.e. the height of the clasp 4 is uniform, and the circumferential angle of the tuning hole 42 is uniform), so as to ensure the product quality.

[0055] As shown in Figure 8As shown, further, the feeding tool 31 has a first station and a second station, the first station is located below the pre-pressing assembly 32, used to fix and feed the wood strip 5 with the twist buckle 6, and the second station is located below the rotary pressing assembly 33; further, the feeding tool 31 includes a bottom plate 311, two limiting plates 312, a reference plate 313, and two groups of side pressing cylinders 314; the bottom plate 311 can translate along its length direction, the two limiting plates 312 are arranged on the top surface of the bottom plate 311 and located at the edges of the length direction, the reference plate 313 is arranged between the two limiting plates 312 and located at the front side of the length direction of the bottom plate 311, and the two groups of side pressing cylinders 314 are arranged at the middle position of the bottom plate 311 and respectively arranged opposite to the corresponding limiting plate 312, so that the two limiting plates 312 and the two groups of side pressing cylinders 314 respectively form the first station and the second station.

[0056] In this embodiment, the worker needs to manually put the wood strip 5 into the corresponding station; specifically, the one end of the wood strip 5 is abutted on the reference plate 313, and then the wood strip 5 is pushed to the corresponding limiting plate 312 by the side pressing cylinder 314.

[0057] As shown in Figure 8 , further, the pre-pressing assembly 32 is provided with a second clamping piece 321, and the first clamping piece 212 is slidably arranged above the rotary seat 221 and the first station, used to clamp the twist buckle 4 on the rotary seat 221 and pre-press on the corresponding twist buckle 6 in the first station.

[0058] In this embodiment, the second clamping piece 321 and the first clamping piece 212 driving device can realize the synchronous operation of the second clamping piece 321 and the first clamping piece 212, and ensure the uniformity of the process cycle in the same driving direction.

[0059] As shown in Figure 8 , further, the rotary pressing assembly 33 includes a push-down cylinder 331, a motor 332, and a third clamping piece 333; the motor 332 is arranged at the output end of the push-down cylinder 331, and the third clamping piece 333 is arranged at the output end of the motor 332; the third clamping piece 333 clamps the twist buckle 4, and through the cooperation of the push-down cylinder 331 and the motor 332, the twist buckle 4 is screwed into the twist buckle 6, realizing the threaded cooperation of the twist buckle 4 and the twist buckle 6.

[0060] As shown in Figure 9As shown, in the embodiment, the third clamping member 333 module comprises a pair of clamping blocks 3331, a support column 3332 and a pair of transmission columns 3333; the two clamping blocks 3331 are oppositely and slidably arranged for clamping the twist button 4 from the outside; the support column 3332 is fixedly arranged on the axis of the clamping region of the two clamping blocks 3331 for providing support to the upper end surface of the twist button 4, facilitating the downward pressing of the twist button 4; the two transmission columns 3333 are oppositely arranged on the two clamping blocks 3331, the transmission column 3333 is adapted to the tuning hole 42 of the twist button 4 for driving the twist button 4 to rotate; specifically, the support column 3332 abuts against the upper end surface of the twist button 4, when the two clamping blocks 3331 clamp the twist button 4, the two transmission columns 3333 are inserted into the tuning hole 42 of the twist button 4; in this way, the support column 3332 and the transmission column 3333 can solve the quality problem of the outer surface scratch caused by the sliding of the clamping block 3331 on the surface of the twist button 4 when the twist button 4 is pressed and rotated. Preferably, one end of the transmission column 3333 is conical, facilitating the insertion into the tuning hole 42.

[0061] In the embodiment, the difference between the second clamping member 321 and the third clamping member 333 lies in that the second clamping member 321 is not provided with the transmission column 3333; the difference between the first clamping member 212 and the third clamping member 333 lies in that the first clamping member 212 is not provided with the transmission column 3333 and the support column 3332.

[0062] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the limitation of the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical scheme recorded in the foregoing embodiments, or equivalent replacement of part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An assembly apparatus for a tuning lever of a celesta, characterized in that, The device comprises a directional feeding mechanism (1), a circumferential positioning mechanism (2) and an assembling mechanism (3); the directional feeding mechanism (1) comprises a vibrating disc (11), a hooking rod (12), a distributing guide (13) and a conveying track (14); the hooking rod (12) is used to identify and guide the front end face different twist buttons (4) to two motion states; the distributing guide (13) is arranged below the output end of the vibrating disc (11); the distributing guide (13) has a bifurcated mouth; the conveying track (14) is arranged below the distributing guide (13); the conveying track (14) has a first channel and a second channel which are communicated with the bifurcated mouth; the first channel extends to the circumferential positioning mechanism (2); the second channel extends back to the vibrating disc (11); the circumferential positioning mechanism (2) comprises a material moving assembly (21) and a material rotating assembly (22); the material moving assembly (21) is used to receive the twist button (4) and transfer the twist button (4) to the material rotating assembly (22); the material rotating assembly (22) is used to adjust the circumferential angle of the twist button (4); the assembling mechanism (3) comprises a feeding tool (31), a pre-pressing assembly (32) and a rotary pressing assembly (33); the feeding tool (31) has a first station and a second station; the first station is below the pre-pressing assembly (32); the second station is below the rotary pressing assembly (33); the rotary pressing assembly (33) is used to take out the twist button (4) from the circumferential positioning mechanism (2), sequentially place the twist button (4) on the twist nail (6) on the wood strip (5) and pre-press; the rotary pressing assembly (33) is used to drive the twist button (4) to rotate and press down to screw the twist button (4) into the twist nail (6).

2. An assembly apparatus for a tuning lever of a celesta according to claim 1, characterized in that, One end of the hooking rod (12) is rotatably arranged above the output end of the vibrating disc (11); the other end of the hooking rod (12) has a tapered head which is adapted to the assembling hole (41) of the twist button (4).

3. An assembly device for a tuning lever of a celesta according to claim 2, characterized in that, The distributing guide (13) comprises a first guide plate (131) and a second guide plate (132); one end of the first guide plate (131) and the second guide plate (132) is connected; the other end of the first guide plate (131) is downwardly inclined along the rear direction of the conveying direction; the other end of the second guide plate (132) is downwardly inclined along the front direction of the conveying direction, forming the bifurcated mouth.

4. An assembly apparatus for a tuning lever of a celesta according to claim 3, characterized in that, The conveying track (14) comprises a first track plate (141), a second track plate (142) and a side baffle (143); the second track plate (142) is arranged above the first track plate (141) at intervals, the side baffle (143) is located between the first track plate (141) and the second track plate (142) and connects the side surfaces of the first track plate (141) and the second track plate (142), forming the first channel above the first track plate (141) and the second channel above the second track plate (142); the output end of the first track plate (141) protrudes relative to the second track plate (142), so that the first guide plate (131) avoids the second track plate (142) and extends above the first track plate (141), and the second guide plate (132) extends to the second track plate (142).

5. An assembly apparatus for a tuning lever of a celesta according to claim 4, characterized in that, The first track plate (141) and the second track plate (142) are inclined downward on one side connected with the side baffle (143).

6. An assembly apparatus for a tuning lever of a celesta according to claim 4, characterized in that, The conveying track (14) further comprises a guide pipe (144), one end of the guide pipe (144) is connected with the first track plate (141), and the other end is connected with the circumferential positioning mechanism (2); the conveying route of the guide pipe (144) is bent from horizontal downward to vertical.

7. An assembly apparatus for a tuning lever of a celesta according to claim 1, characterized in that, The material rotating assembly (22) comprises a rotating seat (221) and an optical detection module (222); the rotating seat (221) is used for driving the twist buckle (4) to rotate around its axis, and the optical detection module (222) is arranged on one side of the rotating seat (221) and is used for detecting the circumferential angle of the twist buckle (4) on the rotating seat (221).

8. An assembly apparatus for a tuning lever of a celesta according to claim 7, characterized in that, The optical detection module (222) is a light ray sensing module, which comprises an emitter and a receiver, and the emitter and the receiver are oppositely arranged on both sides of the rotating seat (221).

9. An assembly apparatus for a tuning lever of a celesta according to claim 1, characterized in that, The spinning assembly (33) comprises a downward pushing cylinder (331), a motor (332) and a third clamping piece (333); the motor (332) is arranged at the output end of the downward pushing cylinder (331), and the third clamping piece (333) is arranged at the output end of the motor (332).

10. An assembly apparatus for a triange piano regulator according to claim 9, wherein, The third clamping piece comprises a pair of clamping blocks (3331), a supporting column (3332) and a pair of transmission columns (3333); the two clamping blocks (3331) are oppositely and slidably arranged, the supporting column (3332) is fixedly arranged on the axis of the clamping region of the two clamping blocks (3331), and the two transmission columns (3333) are oppositely arranged on the two clamping blocks (3331); the transmission column (3333) is adapted to the tuning hole (42) of the twist buckle (4).

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